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NH at Jupiter, Planning the Jupiter encounter
john_s
post Jun 29 2006, 04:16 PM
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It's been a while since I gave an update on the Jupiter planning process. In the last three months the science team, and several other folks who are helping us out, have come up with a very detailed draft timeline for the Jupiter encounter. We just had a meeting at APL in Baltimore where we presented the plan to the spacecraft team who will now have the job of implementing it. This is where the dreams of the scientists meet the engineering realities, and we may need to scale back our ambitions a bit to make the plan more workable- we'll see how things go over the next few months.

In any case, the current version of the plan includes several of the "Kodak moments" identified by Hendric a few months ago- thanks again for your work on that! These include the double satellite shadow transits at 1/17/07 1:46 and 1/24/07 4:46; Europa emerging from behind Jupiter at 2/28/07 11:53; the conjunction of the crescents of Io and Europa at 3/2/07 10:29; crescent Ganymede crossing the crescent of Jupiter at 3/4/07 3:55; and Callisto emerging from behind Jupiter at 3/4/07 4:38. No guarantees that these will all survive the implementation process, but we'll try to make them all happen.

John.
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Bob Shaw
post Jun 29 2006, 04:29 PM
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QUOTE (john_s @ Jun 29 2006, 05:16 PM) *
It's been a while since I gave an update on the Jupiter planning process. In the last three months the science team, and several other folks who are helping us out, have come up with a very detailed draft timeline for the Jupiter encounter. We just had a meeting at APL in Baltimore where we presented the plan to the spacecraft team who will now have the job of implementing it. This is where the dreams of the scientists meet the engineering realities, and we may need to scale back our ambitions a bit to make the plan more workable- we'll see how things go over the next few months.

In any case, the current version of the plan includes several of the "Kodak moments" identified by Hendric a few months ago- thanks again for your work on that! These include the double satellite shadow transits at 1/17/07 1:46 and 1/24/07 4:46; Europa emerging from behind Jupiter at 2/28/07 11:53; the conjunction of the crescents of Io and Europa at 3/2/07 10:29; crescent Ganymede crossing the crescent of Jupiter at 3/4/07 3:55; and Callisto emerging from behind Jupiter at 3/4/07 4:38. No guarantees that these will all survive the implementation process, but we'll try to make them all happen.

John.



John:

I hope they get defined as 'Hendric Moments' in the mission planning!

Bob Shaw


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hendric
post Jun 29 2006, 07:47 PM
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John,
Great news. I'm happy to have helped. Is there any chance of getting something of the eclipses?

http://www.unmannedspaceflight.com/index.p...=2088&st=74

I'd love to see what the moons look like once they're in eclipse; I imagine they get quite a bit of light refracted from around Jupiter. Besides, it's the one KODAK_MMT Cassini can't offer for some time, because of Saturn's tilt. smile.gif


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john_s
post Jun 29 2006, 09:53 PM
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We'll be taking a lot of observations of the satellites in eclipse for scientific reasons- no need for special "scenic" observations. We'll be looking for auroral emissions from their atmospheres, and for Io, we'll also be imaging the glow of its volcanos. See for instance this Cassini movie of Io...

John.
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djellison
post Jun 29 2006, 10:01 PM
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I was ploughing through some ACS / WFPC2 Jupiter observations, one sequence includes Ganymede appearing from behind the limb of Jupiter and there's little or none of the distortion I was thinking might be cool - but I have no doubt that some of these Hendrick moments will be cool - I really loved that Cassini move of Io's glowing voclanology smile.gif

Doug
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john_s
post Aug 24 2006, 09:55 PM
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Hi Folks-

I've just posted lots of details about the New Horizons Jupiter encounter plans here. This page includes a llink to detailed PDF-format Powerpoint presentation that describes exactly what we plan to do, and when, though some details are likely to change, perhaps including some significant cutbacks, during the implementation process.

Enjoy!
John.
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punkboi
post Aug 24 2006, 09:59 PM
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QUOTE (john_s @ Aug 24 2006, 02:55 PM) *
Hi Folks-

I've just posted lots of details about the New Horizons Jupiter encounter plans here. This page includes a llink to detailed PDF-format Powerpoint presentation that describes exactly what we plan to do, and when, though some details are likely to change, perhaps including some significant cutbacks, during the implementation process.

Enjoy!
John.


John, can you tell us when the lens cover to LORRI will be opened? Thanks


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john_s
post Aug 24 2006, 10:02 PM
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The LORRI lens cap will be opened in about a week, IIRC- we'll be taking some test pictures of Jupiter (only about 100 pixels across) shortly after the grand opening. We're all quite excited to see them...
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Decepticon
post Aug 24 2006, 10:14 PM
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ME 2!!!
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ugordan
post Aug 24 2006, 10:17 PM
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QUOTE (john_s @ Aug 24 2006, 11:02 PM) *
We're all quite excited to see them...

Indeed, we all are smile.gif

John, right now I'm watching the simulated images of Io on page 13 and I'm wondering how prone is LORRI's CCD to that nasty charge bleeding effect? These exposures optimized for plume viewing seem problematic, also is the scattered light in the optics going to be a problem here?
Do you already have these effects characterized during ground testing or is this up to in-flight calibration?
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punkboi
post Aug 25 2006, 12:21 AM
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QUOTE (john_s @ Aug 24 2006, 03:02 PM) *
The LORRI lens cap will be opened in about a week, IIRC- we'll be taking some test pictures of Jupiter (only about 100 pixels across) shortly after the grand opening. We're all quite excited to see them...


Great, thanks John. Can't wait to see the test pics as well smile.gif


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2007 NASA JPL Open House photos: http://www.rich-parno.com/aa_openhouse2.html
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2009 NASA Kennedy Space Center photos: http://www.rich-parno.com/aa_KSC01.html
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stevesliva
post Aug 25 2006, 05:27 PM
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QUOTE (john_s @ Aug 24 2006, 05:55 PM) *
I've just posted lots of details about the New Horizons Jupiter encounter plans here. This page includes a llink to detailed PDF-format Powerpoint presentation that describes exactly what we plan to do, and when, though some details are likely to change, perhaps including some significant cutbacks, during the implementation process.

Awesome presentation -- thanks! Lots of ring science, and thankfully some nice Kodak moments.
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Julius
post Sep 16 2006, 09:09 AM
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John S has seen the first pics from NH of Jupiter as stated in the planetary blog;I kindly ask him to put those first images on this site.Thanks
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john_s
post Sep 16 2006, 04:34 PM
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Sorry folks- images will have to be released through the regular channels. The really good images, from LORRI, have been taken but not downlinked yet- we should have them on the ground next week. So please be patient a little longer. As I said before, at this range even the LORRI Jupiter images will not be spectacular, though it will sure be good to see them.

John.
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Phil Stooke
post Sep 17 2006, 02:40 AM
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John, that was a great piece you did for the Planetary Society. Thanks! - both of them were good, I should say, but the one on this topic was particularly useful and informative.

Phil


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